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CVE-2026-56434

Опубликовано: 15 июл. 2026
Источник: nvd
CVSS3: 6.5
EPSS Низкий

Описание

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module. This vulnerability may exist when the Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a use-after-free in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process.

Impact: This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only.

Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*
Версия от 1.3.0 (включая) до 1.6.2 (включая)
cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:*
Версия от 2.0.0 (включая) до 2.6.7 (исключая)
cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:*
Версия от 3.5.0 (включая) до 3.7.2 (включая)
cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:continuous_releases:*:*:*
Версия от 5.0.0 (включая) до 5.5.3 (исключая)
cpe:2.3:a:f5:nginx_ingress_controller:*:*:*:*:long-term_support:*:*:*
Версия от 2026-lts-r1 (включая) до 2026-lts-r4 (исключая)
cpe:2.3:a:f5:nginx_ingress_controller:4.0.0:*:*:*:continuous_releases:*:*:*
cpe:2.3:a:f5:nginx_ingress_controller:4.0.1:*:*:*:continuous_releases:*:*:*
cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*
Версия от 37.0.0.1 (включая) до 37.0.3.1 (исключая)
cpe:2.3:a:f5:nginx_plus:*:*:*:*:*:*:*:*
Версия от r33 (включая) до r36 (исключая)
cpe:2.3:a:f5:nginx_plus:r36:-:*:*:*:*:*:*
cpe:2.3:a:f5:nginx_plus:r36:p1:*:*:*:*:*:*
cpe:2.3:a:f5:nginx_plus:r36:p2:*:*:*:*:*:*
cpe:2.3:a:f5:nginx_plus:r36:p3:*:*:*:*:*:*
cpe:2.3:a:f5:nginx_plus:r36:p4:*:*:*:*:*:*
cpe:2.3:a:f5:nginx_plus:r36:p5:*:*:*:*:*:*
cpe:2.3:a:f5:nginx_plus:r36:p6:*:*:*:*:*:*
cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*
Версия от 4.11.0 (включая) до 4.16.0 (включая)
cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*
Версия от 5.2.0 (включая) до 5.8.0 (включая)
cpe:2.3:a:f5:waf:*:*:*:*:*:nginx:*:*
Версия от 5.9.0 (включая) до 5.13.4 (исключая)

EPSS

Процентиль: 38%
0.0045
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-416

Связанные уязвимости

CVSS3: 6.5
ubuntu
2 месяца назад

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module. This vulnerability may exist when the Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a use-after-free in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process. Impact: This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 6.5
redhat
2 месяца назад

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module. This vulnerability may exist when the Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a use-after-free in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process. Impact: This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS3: 6.5
msrc
около 2 месяцев назад

NGINX ngx_http_ssi_module vulnerability

CVSS3: 6.5
debian
2 месяца назад

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ ...

CVSS3: 6.5
github
2 месяца назад

NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_ssi_module module. This vulnerability may exist when the Server-Side Includes (SSI), proxy_pass, and proxy_buffering off directives are configured. With this configuration, an unauthenticated attacker with man-in-the-middle (MITM) ability to control responses from an upstream server may be able to cause a heap buffer over-read in the NGINX worker process. This issue may lead to limited modification of memory or a restart of the NGINX worker process. Impact: This vulnerability may allow remote attackers to have limited control to modify memory contents or restart the NGINX worker process. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

EPSS

Процентиль: 38%
0.0045
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-416